yuvinactive
Set a part of the video to a defined state
see also :
lav2yuv - mpeg2enc - yuvscaler - yuv2lav - yuvdenoise - yuvplay - yuvmedianfilter
Synopsis
yuvinactive
[options] </dev/stdin >/dev/stdout
add an example, a script, a trick and tips
examples
no example yet ...
... Feel free to add your own example above to help other Linux-lovers !
description
yuvinactive
operates with a area (rectangle) you define. By default is
sets it to really black. But you can tell tell yuvinactive
to darken the area, or fill it with a certain color. It can
also make the content of the area unreadable, like extreme
softening of the area. Or copy the surrounding area into the
the specified area. You usually have to use the -i option
which sets the area in which yuvinactive will work. If no
additional option is given yuvinactive stet the area to
black. But you can use the -d -s -a -c options to
tell yuvinactive that it shall do something different with
that area. You can only use one additional option.
yuvinactive was built to remove unwanted things like a logo,
from the movie.
options
lav2yuv
accepts the following options:
-iXxY+XOFF+YOFF
Specifies the area yuvinactive
shall work with. With this option the area is set to black.
There are no restrictions because of interlacing.
-d num
How much darker the area should
be compared to the original color. This is done by setting a
lower value for the luma. The value is in percent from the
original luma.
-s num
Here you specify a certain
color in the yuv format.
-a num
With this option the program
uses on pixel and averages the surrounding pixels with the
same color to make the original less readable. The number
tells the the program how much pixels around the original
pixel should be overwritten with the same color. You have to
use a even number here
-c num
Sets the number of surrounding
pixels yuvinactive should use to copy them into the given
area. You have to use a even number here. yuvinactive uses
the lines above and below the specified area for copying
them into the area.
bugs
Right, there
are bugs hidden. The thing is not well tested, and not every
option might work. yuvinactive is in the first state of
becoming a useful program.
see also
mjpegtools,
lav2yuv , mpeg2enc , yuvscaler ,
yuv2lav , yuvdenoise , yuvplay ,
yuvmedianfilter
author
This man page
was originally written by Bernhard Praschinger.
If you have questions, remarks, problems or you just want to
contact the developers, the main mailing list for the
MJPEG-tools is:
mjpeg-users[:at:]lists.sourceforge[:dot:]net
For more info, see our website at
http://mjpeg.sourceforge.net